public function importLiteral($pPhpObjectLiteral)
 {
     if (is_null($this->mLeftJoins)) {
         $this->_buildModelTree(array($pPhpObjectLiteral->model => null));
     }
     $this->setLiteral(Literal::phpObjectToLiteral($pPhpObjectLiteral, $this->mLeftJoins, $this->mLiteralCollection));
 }
 /**
  * @param stdClass $pPhpObject
  * @param array $pLeftJoins
  * @throws \Exception
  * @return Literal
  */
 public static function phpObjectToLiteral($pPhpObject, &$pLeftJoins, $pLiteralCollection = null)
 {
     if (isset($pPhpObject->id) && !is_null($pLiteralCollection)) {
         if (!array_key_exists($pPhpObject->id, $pLiteralCollection)) {
             throw new \Exception("literal id '{$pPhpObject->id}' is not defined in literal collection");
         }
         return $pLiteralCollection[$pPhpObject->id];
     }
     self::_verifPhpObject($pPhpObject);
     if (!array_key_exists($pPhpObject->node, $pLeftJoins)) {
         throw new \Exception("node doesn't exist in join tree : " . json_encode($pPhpObject));
     }
     $lLeftJoin = $pLeftJoins[$pPhpObject->node];
     $lLeftModel = $lLeftJoin['left_model'];
     $lRightodel = $lLeftJoin['right_model'];
     $lTable = $pPhpObject->node;
     if (isset($pPhpObject->queue)) {
         $lSubQueryTables = self::_queuetoLeftJoins($lLeftModel, $lTable, $pPhpObject->queue);
         $lLeftJoin = $pLeftJoins[$pPhpObject->node];
         $lLeftColumn = $lLeftJoin['left_model']->getProperty($lLeftJoin['left_model']->getFirstIdPropertyName())->getSerializationName();
         $lLeftTable = array_key_exists('right_table_alias', $lLeftJoin) && !is_null($lLeftJoin['right_table_alias']) ? $lLeftJoin['right_table_alias'] : $lLeftJoin['right_table'];
         $lColumnIdSubQuery = $lSubQueryTables[0]['right_column'][0];
         $lSelectQuery = self::_setSubSelectQuery($lSubQueryTables, $pPhpObject);
         $lRigthTableAlias = 't_' . self::$sIndex++;
         while (array_key_exists($lRigthTableAlias, $pLeftJoins)) {
             $lRigthTableAlias = 't_' . self::$sIndex++;
         }
         $lJoinTable = array('left_table' => $lLeftTable, 'left_column' => $lLeftColumn, 'right_table' => $lSelectQuery, 'right_table_alias' => $lRigthTableAlias, 'right_column' => $lColumnIdSubQuery);
         $pLeftJoins[$lJoinTable['right_table_alias']] = $lJoinTable;
         $lLiteral = new Literal($lJoinTable['right_table_alias'], $lColumnIdSubQuery, Literal::DIFF, null);
     } else {
         $lProperty = $lRightodel->getProperty($pPhpObject->property, true);
         if ($lProperty->isComposition()) {
             throw new \Exception("literal cannot contain foreign porperty '{$pPhpObject->property}'");
         }
         $lLiteral = new Literal($lTable, $lProperty->getSerializationName(), $pPhpObject->operator, $pPhpObject->value);
     }
     if (isset($pPhpObject->id)) {
         $lLiteral->setId($pPhpObject->id);
     }
     return $lLiteral;
 }